         [:body
             [:div {:class "container"}
                 (render-navigation-bar-section url-prefix title)
+                (render-breadcrumb url-prefix nil nil nil nil nil nil)
                 [:div {:class "container-fluid"}
                 [:h2 "Product list"]
                 [:table {:style "border-collapse: separate; border-spacing: 10px;"}

            [:div {:class "container"}
                (render-navigation-bar-section url-prefix title)
                [:div {:class "container-fluid"}
                [:h2 (str "Chapters for product " product-name " and chapter " chapter-name)]
                [:table {:style "border-collapse: separate; border-spacing: 10px;"}
                    (for [group group-list]
                        [:tr

        ] ; </div .container-fluid>
]); </nav>

(defn render-breadcrumb
    "Render the breadcumb at the top of page."
    [url-prefix
     product-id product-name
     chapter-id chapter-name
     group-id group-name]
    [:ol {:class "breadcrumb"}
         [:li [:a {:href url-prefix} "Hurvinek"]]
         [:li product-name]]
         )

(defn render-front-page
    "Render front page of this application."
    [url-prefix title]
